[PD] patch wanted: loop station

[Ed Kelly]

The way to deal with this in real-time is to fade in for a short period at the start, and fade out at the end. In order for that to respond in real time, I've found a good way is to delay the audio stream by a tiny value (e.g. 5ms) then fade the audio at 5ms - 1 audio block (about 1.46ms). That way, when you hit "stop" on the sample playback object (e.g. tabread4~ or xgroove~) the audio stops, but the 5ms delay means that the fadeout starting at that moment will happen before the audio you hear stops (because it is delayed by 5ms).

I hope that makes sense. Patch enclosed!
Ed
 
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On Wednesday, 26 March 2014, 21:52, "puredata at 11h11.com" <puredata at 11h11.com> wrote:
 
Hi everyone,
>
>I'm struggling at making my own loop station solution inside pd. I'm  
>trying to mimic SooperLooper, that is:
>
>- multiple sync options
>- multiple quantize options
>+ something i am not sure SooperLooper do: cross-fading begin/end of  
>loop to avoid glitches.
>
>I have code a patch, but it is very messy (1 abstraction for master, x  
>abstractions for slaves). I am using xrecord & xgroove (for  
>crossing-fading start / end). The patch is kind of working but I am  
>getting glitches when starting and stopping the recording (I think it  
>was okay when using a bigger jack buffer - (I am now at 64...)).
>
>Thanks!
>
>
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